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Use the substitution method to solve the system of equation.choose the correct ordered pair. Y=10x-9 y=x+18

Use the substitution method to solve the system of equation.choose the correct ordered pair. Y=10x-9 y=x+18
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3 votes
Use the substitution method to solve the system of equation.choose the correct ordered pair. Y=10x-9 y=x+18

User Stuartmclark
by
8.4k points

2 Answers

7 votes

Answer: (3,21)

Explanation:

Still correct answer on APEX as of 4/29/19.

User ARGO
by
7.9k points
4 votes
y=10x-9 , y=x+18
10x-9=x+18
9x-9=18
9x=27
x=3

y=10x-9
y=10 (3)-9
y=30-9
y=21

B. (3,21)Source(s):
My Brain
User YazanGhafir
by
8.0k points
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